上顎神経伝達麻酔の研究—補遺（その2）—特に野村第Ⅱ法（NⅡ法）について

A STUDY ON NERVE-BLOCK ANESTHESIA OF THE MAXILLARY NERVE

　Ⅰ．緒言

　最近は副鼻腔の手術に際しても，麻酔学の進歩に伴い割合に簡便に全身麻酔が行なわれ，又前処置に基礎麻酔として，カクテル麻酔，麻薬の注射等が平常の如く行なわれ，手術時の無痛を獲得する為に努力をなされて居る。

　副鼻腔手術時の疼痛の最も甚しいのは云うまでもなく上顎洞であり，篩骨洞，前頭洞，蝶形洞に於ては簡単な表面麻酔で事足りることが多い。

　The results of anesthesia in sinus operations by maxillary nerve block, particularly rhe Nomura's second method, are reported. The nerve block anesthesia was administered in 142 coses, consisting of patients whose ages ranging from 10 to 69, 87 males and 55 females and 255 facial sides. Expressed in terms of one plus to three pluses in accordance to the degree of anesthesia produced, 71. 37% of cases were 3 plus, resulting in a complete anesthesia throughout the area supplied by the maxillary nerve, 18. 3% were 2 plus where the area of aneshtesia was limited to the maxillary cavity alone; 1 plus in 6.68% anesthesia was only partial in the maxillary cavity; 3.92% of cases in whom the result was negative. In cases where production of anesthesia was only partial by this method, other methd of anesthetization had to be incorporated.